SuSE

First of all, thanks for the answers

I have tested all this solutions but by now, I'm not able to get if the file is complete downloaded.

The command 'lsof' doesn't show the file that the 'vsftpd' process is writting. I get the same problem with 'fuser'.

I have made a C program that lock in exclusive mode the file. I thought that If I am able to lock the file then the file is not open by another process. But It doesn't work, the program is able to lock the file although the file is downloading.

The real problem appear to be that, nowhere in the Linux system reside information about the files than the vsftpd daemon is working with ...

My system receive files from a lot of external different systems, so I can't request to all this systems ( some of them, another companies ) a second file to confirm that the first one is completed.

Why dont you check the size of the downloaded file's size in an interval of say 30 secs, if they are same, it is inferred the FTP is completed.

Re paragraph 1: I find it very hard to believe that lsof can't do this. Your lsof could be broken, more more likely you are doing something wrong. Since you haven't mentioned stuff like precisely what command you used or precisely what result you got there's no way to tell. Could you take a bug report like: "'lsof' doesn't show the file" and do anything with it?

Re paragraph 2: "exclusive locks" are the only kind that exist. If you want a mandatory lock, read mandatory.txt. But this won't help much. If you do it correctly, you will succeed, and vxftpd will experience failed writes. It will probably detect this and inform the ftp client of the error.

Re paragraph 3: I wonder how the data gets to the file?

I looked at the source code for vsftpd. I see it has a logging option. Turn that on and parse the log to see if the file is finished.

I wonder if this is a vfstpd bug or not. Hard to belive that an open file in UNIX does not have a "flag" soemwhere.
Have you tried /proc/<pid>/fd? That must be of help. Tom

Here is the ouput during the download of the file. You can notice how the size between the first and the last command is different, however, lsof neither fuser has shown any result that indicate that the file is open.

Perhaps I'm not using these commands correctly ... but I've followed the SuSe documentation and appears to be correctly.

Thanks

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javides@emm:~/apsv/javi/test> dir
-rw-r--r-- 1 javides javides 10048645 2005-06-15 14:11 javiarchivo
javides@emm:~/apsv/javi/test> fuser javiarchivo
javides@emm:~/apsv/javi/test> lsof |grep javiarchivo
javides@emm:~/apsv/javi/test> lsof javiarchivo
javides@emm:~/apsv/javi/test> echo $?
1
javides@emm:~/apsv/javi/test> fuser javiarchivo
javides@emm:~/apsv/javi/test> echo $?
1
javides@emm:~/apsv/javi/test> dir
-rw-r--r-- 1 javides javides 10058605 2005-06-15 14:12 javiarchivo